Antidurotaxis Droplet Motion onto Gradient Brush Substrates
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F23%3APU150478" target="_blank" >RIV/00216305:26620/23:PU150478 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acs.langmuir.3c01999" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.langmuir.3c01999</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.langmuir.3c01999" target="_blank" >10.1021/acs.langmuir.3c01999</a>
Alternative languages
Result language
angličtina
Original language name
Antidurotaxis Droplet Motion onto Gradient Brush Substrates
Original language description
Durotaxis motion is a spectacular phenomenon manifesting itself by the autonomous motion of a nano-object between parts of a substrate with different stiffness. This motion usually takes place along a stiffness gradient from softer to stiffer parts of the substrate. Here, we propose a new design of a polymer brush substrate that demonstrates antidurotaxis droplet motion, that is, droplet motion from stiffer to softer parts of the substrate. By carrying out extensive molecular dynamics simulation of a coarse-grained model, we find that antidurotaxis is solely controlled by the gradient in the grafting density of the brush and is favorable for fluids with a strong attraction to the substrate (low surface energy). The driving force of the antidurotaxial motion is the minimization of the droplet-substrate interfacial energy, which is attributed to the penetration of the droplet into the brush. Thus, we anticipate that the proposed substrate design offers a new understanding and possibilities in the area of autonomous motion of droplets for applications in microfluidics, energy conservation, and biology.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10400 - Chemical sciences
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Langmuir
ISSN
0743-7463
e-ISSN
1520-5827
Volume of the periodical
39
Issue of the periodical within the volume
43
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
15285-15296
UT code for WoS article
001093884400001
EID of the result in the Scopus database
2-s2.0-85172902901